They've never had cabin crew based in UK or any other Country apart from Dubai. All crew, pilots and cabin crew, live in UAE.
As for the package, 47,000 Dirhams per month is the starting salary for B777 Captains with required experience. Accommodation allowance is 16k per month if you choose to live out, another 6,000 per month education allowance per child up to maximum of 3. Just under 6,000 per month from The Company as Provident contribution. This is for line pilots, trainers will get more obviously. 70,000 is a conservative monthly ball park, excluding any overtime and education allowance. 840k Dhs per year is equivalent of £180K tax free, or £15,000 per month with current exchange rate (4.7). When relatively senior BA training guys take home around 10-11 after tax, the money is not the issue. A figure of £300k take home in UK is simply dreaming.
The issue at EK is not so much the money, but the work rate with unsustainable rosters, particularly on the B777. A380 F/O's are getting 15-16 days off every month, 95% are layovers. B777 skippers are doing 100 hours many months, 8-9 days off, 10 if you're lucky with a mix of night turns and layovers with some crappy timings. Most layovers are 24 hrs including home base, ironically the most tiring rest period and one 'recommended' in the ops manual to avoid.
People leave and not enough are joining. The package DOES need to be increased, simply to attract new joiners. More join, work becomes less, people stay. Part time may be on the horizon but only if the numbers increase. I can't see commuting contracts but desperate times call for desperate measures so you just never know.
The only thing that remains constant in this place is change!